ML20238F632
| ML20238F632 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 08/31/1987 |
| From: | Butterfield L COMMONWEALTH EDISON CO. |
| To: | Davis A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| 3522K, NUDOCS 8709160250 | |
| Download: ML20238F632 (3) | |
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One Fird Natiord Plaza, Chicago, Illinois
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O J Address Reply to: Post Office Box 767
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August 31, 1987
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Mr.-A. Bert Davis.
Regional Administrator
-U.S. Nuclear Regulatory Commission Region III i.
799 Roosevelt Road Olen Ellyn, IL 60137
Subject:
LaSalle County Station Units 1 and 2 Response to Inspection Report Nos, 50-373/87-020 and 50-374/87-020
'NRC Docket Nos. 50-373 and 50-374 _
Reference (a):
W. D. Shafer letter to Cordell Reed
. dated August 6, 1987
Dear Mr'. Davis:
This letter is in response to the inspection conducted by Messrs.
R. A. Paul and M. A. Kunowski on July 1-15, 1987, of certain activities at LaSalle county Station. Reference (a) indicated that certain'ac.tivities appeared to be in noncompliance with NRC requirements. The Commonwetith
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Rdison Company response to the Severity Level IV Notice of Violation is provided in the Attachment, If you have any further questions on this matter, please direct j
them'this office, 1
Very truly yours, k
L. D. Butterfield Nuclear Licensing Manager im bh I
. Attachment i
i cc:. NRC Resident Inspector - LSCS SEP 0 21987 3522K 8709160250 070831 PDR ADOCK 05000373 G
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ATTACHMENT VIOLATION:
Technical Specification 6.2.A requires that the applicable procedures recommended in Appendix "A" of Regulatory Guide 1.33, Revision 2/5 February 1978 be maintained and adhered to.
Section 8(b)(2)(bb) of Appendix "A" requires procedures for calibrations of process radiation monitors.
P LaSalle Procedure (LCP-820-13) requires that the solid cesium-137/
standard source response recorded in Attachment A of LCP-820-13, be within<
plus or minus 20 percent of the decay-corrected initial calibration response.
- j contrary to the above, for the calibration of the "B" RHR liquid process radiation monitor performed in 1986, the solid cesium-137 standard source response, recorded in Attachment A of LCP-820-13, was not within plus or minus 20 percent of the decay-corrected initial calibration response.
Specifically, the standard source response differed from the decay-corrected initial response by 24%.
CORRECTIVE ACTION TAKEN AND RESULTS ACHIEVED On July 8, 1987, the portion of LCP-820-13 that checks the detector response to a cesium-137 solid source was performed. The detector responded to within 8.5% of the expected response, well within the +/- 20% criteria (which if exceeded requires recalibration).
CORRECTIVE ACTION TAKEN TO AVOID FURTHER VIOLATION A tailgate was held for the chemistry group on August 24, 1987.
This tailgate discussed this event and re-emphasized that if a procedure step is encountered where there is uncertainty on the performance, contact supervision for direction. New personnel will continue to have on-the-job training on calibration procedures to be performed for the first time. This l
on-the-job training will ensure a thorough knowledge of the acceptance criteria and appropriate corrective actions to resolve discrepancies.
The procedure was reviewed for adequacy and clarity and found to be satisfactory.
DATE OF WHEN FULL COMPLIANCE WILL BE ACHIEVED Full compliance has been achieved.
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